QNT Quantinuum Inc.
Quantinuum Inc. (QNT) Institutional Ownership
What the institutions did with QNT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Capital World Investors | 4.6M | 13.4% |
| CITADEL ADVISORS LLC | 2.3M | 6.8% |
| BlackRock, Inc. | 2.3M | 6.6% |
| Capital Research Global Investors | 1.8M | 5.2% |
| Defiance ETFs, LLC | 1.2M | 3.6% |
| Penserra Capital Management LLC | 1.2M | 3.5% |
| WELLINGTON MANAGEMENT GROUP LLP | 1.1M | 3.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.0M | 3.0% |
| Capital International Investors | 961.4K | 2.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 949.3K | 2.8% |
| Balyasny Asset Management L.P. | 821.9K | 2.4% |
| ALLIANCEBERNSTEIN L.P. | 789.3K | 2.3% |
| VOYA INVESTMENT MANAGEMENT LLC | 691.4K | 2.0% |
| FIL Ltd | 666.8K | 2.0% |
| FMR LLC | 642.8K | 1.9% |
| NORGES BANK | 564.0K | 1.7% |
| FRANKLIN RESOURCES INC | 545.3K | 1.6% |
| Shannon River Fund Management LLC | 469.4K | 1.4% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 463.9K | 1.4% |
| Mubadala Investment Co PJSC | 449.5K | 1.3% |
| PRINCIPAL FINANCIAL GROUP INC | 440.1K | 1.3% |
| FEDERATED HERMES, INC. | 393.8K | 1.2% |
| MARSHALL WACE, LLP | 392.6K | 1.2% |
| Jupiter Topco LLC | 384.4K | 1.1% |
| Bank of New York Mellon Corp | 377.1K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Capital World Investors | New | 0 | 4.6M | +4.6M |
| CITADEL ADVISORS LLC | New | 0 | 2.3M | +2.3M |
| BlackRock, Inc. | New | 0 | 2.3M | +2.3M |
| Capital Research Global Investors | New | 0 | 1.8M | +1.8M |
| Defiance ETFs, LLC | New | 0 | 1.2M | +1.2M |
| Penserra Capital Management LLC | New | 0 | 1.2M | +1.2M |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 1.1M | +1.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 1.0M | +1.0M |
| Capital International Investors | New | 0 | 961.4K | +961.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | New | 0 | 949.3K | +949.3K |
| Balyasny Asset Management L.P. | New | 0 | 821.9K | +821.9K |
| ALLIANCEBERNSTEIN L.P. | New | 0 | 789.3K | +789.3K |
| VOYA INVESTMENT MANAGEMENT LLC | New | 0 | 691.4K | +691.4K |
| FIL Ltd | New | 0 | 666.8K | +666.8K |
| FMR LLC | New | 0 | 642.8K | +642.8K |
| FRANKLIN RESOURCES INC | New | 0 | 545.3K | +545.3K |
| Shannon River Fund Management LLC | New | 0 | 469.4K | +469.4K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | New | 0 | 463.9K | +463.9K |
| Mubadala Investment Co PJSC | New | 0 | 449.5K | +449.5K |
| PRINCIPAL FINANCIAL GROUP INC | New | 0 | 440.1K | +440.1K |
| FEDERATED HERMES, INC. | New | 0 | 393.8K | +393.8K |
| MARSHALL WACE, LLP | New | 0 | 392.6K | +392.6K |
| Bank of New York Mellon Corp | New | 0 | 377.1K | +377.1K |
| JENNISON ASSOCIATES LLC | New | 0 | 358.5K | +358.5K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | New | 0 | 335.8K | +335.8K |
| Jain Global LLC | New | 0 | 334.5K | +334.5K |
| VIKING GLOBAL INVESTORS LP | New | 0 | 306.1K | +306.1K |
| D1 Capital Partners L.P. | New | 0 | 300.0K | +300.0K |
| Davidson Kempner Capital Management LP | New | 0 | 297.8K | +297.8K |
| SOROS FUND MANAGEMENT LLC | New | 0 | 266.0K | +266.0K |
| Granahan Investment Management, LLC | New | 0 | 233.5K | +233.5K |
| Burkehill Global Management, LP | New | 0 | 230.0K | +230.0K |
| Schonfeld Strategic Advisors LLC | New | 0 | 216.3K | +216.3K |
| Ghisallo Capital Management LLC | New | 0 | 200.0K | +200.0K |
| SEVEN GRAND MANAGERS, LLC | New | 0 | 200.0K | +200.0K |
| BROWN ADVISORY INC | New | 0 | 187.5K | +187.5K |
| LMR Partners LLP | New | 0 | 182.3K | +182.3K |
| Blackstone Inc. | New | 0 | 180.0K | +180.0K |
| HBK INVESTMENTS L P | New | 0 | 179.5K | +179.5K |
| Hudson Bay Capital Management LP | New | 0 | 178.4K | +178.4K |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 176.7K | +176.7K |
| BlueCrest Capital Management Ltd | New | 0 | 175.0K | +175.0K |
| MORGAN STANLEY | New | 0 | 158.3K | +158.3K |
| D. E. Shaw & Co., Inc. | New | 0 | 155.0K | +155.0K |
| MAPLELANE CAPITAL, LLC | New | 0 | 150.0K | +150.0K |
| Elliott Investment Management L.P. | New | 0 | 150.0K | +150.0K |
| ExodusPoint Capital Management, LP | New | 0 | 144.0K | +144.0K |
| Woodline Partners LP | New | 0 | 140.2K | +140.2K |
| CAPITAL ADVISORS INC/OK | New | 0 | 140.1K | +140.1K |
| Weiss Asset Management LP | New | 0 | 140.0K | +140.0K |
| Strong Tower Advisory Services | New | 0 | 128.5K | +128.5K |
| BW Gestao de Investimentos Ltda. | New | 0 | 128.0K | +128.0K |
| UBS Group AG | New | 0 | 126.9K | +126.9K |
| Freestone Grove Partners LP | New | 0 | 116.3K | +116.3K |
| BANK OF AMERICA CORP /DE/ | New | 0 | 112.8K | +112.8K |
| NEUBERGER BERMAN GROUP LLC | New | 0 | 109.4K | +109.4K |
| Shay Capital LLC | New | 0 | 109.1K | +109.1K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 107.7K | +107.7K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 103.2K | +103.2K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 100.0K | +100.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.